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GMC FULL SIZE PICKUP
MODEL YEAR(S
FULL SIZE PICKUP 1988-1992
KEY T-HARNESS IMMOBILIZER
N/A GM-3 N/A
PART COLOR LOCATION DIAGRAM
12 VOLT CONSTANT RED (+) @ IGNITION SWITCH HARNESS
STARTER YELLOW (+) or PURPLE (+) @ IGNITION SWITCH HARNESS
STARTER 2 N/A
IGNITION 1 PINK (+) @ IGNITION SWITCH HARNESS
IGNITION 2 N/A
IGNITION 3 N/A
ACCESSORY/HEATER BLOWER 1 ORANGE (+) @ IGNITION SWITCH HARNESS
ACCESSORY/HEATER BLOWER 2 N/A
KEYSENSE N/A
PARKING LIGHTS ( - ) N/A
PARKING LIGHTS ( + ) BROWN (+) @ HEADLIGHT SWITCH or FUSEBOX
POWER LOCK LIGHT BLUE (TYPE C) IN DRIVERS DOOR HARNESS
POWER UNLOCK BLACK/WHITE or BLACK/RED (TYPE C) IN DRIVERS DOOR HARNESS
LOCK MOTOR WIRE GRAY (5-WIRE TYPE) IN DRIVERS DOOR HARNESS
DOOR TRIGGER WHITE (-) @ UNDERDASH LIGHT
DOMELIGHT SUPERVISION USE DOOR TRIGGER, (Requires Part #775 Relay)
TRUNK RELEASE N/A
SLIDING POWER DOOR N/A
HORN BLACK (-) @ STEERING COLUMN HARNESS
TACH PURPLE/WHITE (AC) @ IGNITION COIL or DISTRIBUTOR
WAIT TO START LIGHT N/A
BRAKE WHITE (+) @ SWITCH ABOVE BRAKE PEDAL
FACTORY ALARM DISARM N/A
ANTI-THEFT N/A
NOTES
LINK 1 LINK TEXT 1 LINK 2 LINK TEXT 2
EXTRA INFORMATION